/* This is the Assembler Pre-Processor
Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003
+ 1999, 2000, 2001, 2002, 2003, 2006, 2007
Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
GAS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
- GAS is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
+ GAS is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
+ License for more details.
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to the Free
02110-1301, USA. */
/* Modified by Allen Wirfs-Brock, Instantiations Inc 2/90. */
-/* App, the assembler pre-processor. This pre-processor strips out excess
- spaces, turns single-quoted characters into a decimal constant, and turns
- # <number> <filename> <garbage> into a .line <number>\n.file <filename>
- pair. This needs better error-handling. */
+/* App, the assembler pre-processor. This pre-processor strips out
+ excess spaces, turns single-quoted characters into a decimal
+ constant, and turns the # in # <number> <filename> <garbage> into a
+ .linefile. This needs better error-handling. */
-#include <stdio.h>
-#include "as.h" /* For BAD_CASE() only. */
+#include "as.h"
#if (__STDC__ != 1)
#ifndef const
1: After first whitespace on line (flush more white)
2: After first non-white (opcode) on line (keep 1white)
3: after second white on line (into operands) (flush white)
- 4: after putting out a .line, put out digits
+ 4: after putting out a .linefile, put out digits
5: parsing a string, then go to old-state
6: putting out \ escape in a "d string.
- 7: After putting out a .appfile, put out string.
- 8: After putting out a .appfile string, flush until newline.
+ 7: no longer used
+ 8: no longer used
9: After seeing symbol char in state 3 (keep 1white after symchar)
10: After seeing whitespace in state 9 (keep white before symchar)
11: After seeing a symbol character in state 0 (eg a label definition)
ch = GET ();
if (ch == '"')
{
- UNGET (ch);
- if (scrub_m68k_mri)
- out_string = "\n\tappfile ";
- else
- out_string = "\n\t.appfile ";
- old_state = 7;
- state = -1;
- PUT (*out_string++);
+ quotechar = ch;
+ state = 5;
+ old_state = 3;
+ PUT (ch);
}
else
{
memcpy (to, from, len);
to += len;
from += len;
+ if (to >= toend)
+ goto tofull;
}
}
ch = GET ();
if (ch == EOF)
{
+ /* This buffer is here specifically so
+ that the UNGET below will work. */
+ static char one_char_buf[1];
+
as_warn (_("end of file in string; '%c' inserted"), quotechar);
state = old_state;
+ from = fromend = one_char_buf + 1;
+ fromlen = 1;
UNGET ('\n');
PUT (quotechar);
}
PUT (ch);
continue;
- case 7:
- ch = GET ();
- quotechar = ch;
- state = 5;
- old_state = 8;
- PUT (ch);
- continue;
-
- case 8:
- do
- ch = GET ();
- while (ch != '\n' && ch != EOF);
- if (ch == EOF)
- goto fromeof;
- state = 0;
- PUT (ch);
- continue;
-
#ifdef DOUBLEBAR_PARALLEL
case 13:
ch = GET ();
switch (state)
{
- case 0:
- state++;
- goto recycle; /* Punted leading sp */
case 1:
/* We can arrive here if we leave a leading whitespace
character at the beginning of a line. */
old_state = 4;
state = -1;
if (scrub_m68k_mri)
- out_string = "\tappline ";
+ out_string = "\tlinefile ";
else
- out_string = "\t.appline ";
+ out_string = "\t.linefile ";
PUT (*out_string++);
break;
}
if ((symver_state != NULL) && (*symver_state == 0))
goto de_fault;
#endif
+
+#ifdef TC_ARM
+ /* For the ARM, care is needed not to damage occurrences of \@
+ by stripping the @ onwards. Yuck. */
+ if (to > tostart && *(to - 1) == '\\')
+ /* Do not treat the @ as a start-of-comment. */
+ goto de_fault;
+#endif
+
#ifdef WARN_COMMENTS
if (!found_comment)
as_where (&found_comment_file, &found_comment);
if (len > 0)
{
PUT (ch);
- if (len > 8)
- {
- memcpy (to, from, len);
- to += len;
- from += len;
- }
- else
- {
- switch (len)
- {
- case 8: *to++ = *from++;
- case 7: *to++ = *from++;
- case 6: *to++ = *from++;
- case 5: *to++ = *from++;
- case 4: *to++ = *from++;
- case 3: *to++ = *from++;
- case 2: *to++ = *from++;
- case 1: *to++ = *from++;
- }
- }
+ memcpy (to, from, len);
+ to += len;
+ from += len;
if (to >= toend)
goto tofull;
ch = GET ();
the space. We don't have enough information to
make the right choice, so here we are making the
choice which is more likely to be correct. */
- PUT (' ');
+ if (to + 1 >= toend)
+ {
+ /* If we're near the end of the buffer, save the
+ character for the next time round. Otherwise
+ we'll lose our state. */
+ UNGET (ch);
+ goto tofull;
+ }
+ *to++ = ' ';
}
state = 3;
projects / deliverable / binutils-gdb.git / blobdiff